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5c2f4c9cfc
The only thing these DAI startup/shutdown callbacks do is play with pm_runtime reference counts. This is not wrong, but it's not necessary at all. At the ASoC core level, only the component matters for pm_runtime. The ASoC core already calls pm_runtime_get_sync() in snd_soc_pcm_component_pm_runtime_get(), before the DAI startup callback is invoked. None of the SoundWire codec drivers rely on pm_runtime helpers in their DAI startup/shutdown either. This adds to the evidence that only the component, or more precisely the device specified when registering a component, should deal with pm_runtime transitions. Beyond the code cleanup, this move prepares for the addition of link power management in the auxiliary device startup/resume/suspend callbacks. The DAI callbacks can by-design assume that the device is already pm_runtime active. Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com> Reviewed-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com> Reviewed-by: Rander Wang <rander.wang@intel.com> Reviewed-by: Péter Ujfalusi <peter.ujfalusi@linux.intel.com> Signed-off-by: Bard Liao <yung-chuan.liao@linux.intel.com> Link: https://lore.kernel.org/r/20221215085436.2001568-1-yung-chuan.liao@linux.intel.com Signed-off-by: Vinod Koul <vkoul@kernel.org> |
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Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.
Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.